Show 54 comes out in the midst of the largest beef recall in US history. We talk to Dr Michael Greger, Director of Public Health and Animal Agriculture at the Humane Society of the United States, about the undercover video that sparked the recall. Dr. Greger gives us the low down on Mad Cow Disease, the USDA, downer cows, and the nation's food supply. Also on today's show is Stewart Rose, author of The Vegetarian Solution: Your Answer to Heart Disease, Cancer, Global Warming, and More. Stewart is the Vice President of Vegetarians of Washington and he produces the annual Seattle Vegfest, the largest vegetarian food festival in the US. Stewart talks about a wide range of topics concerning veganism.